<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="https://7npmedia.w3cschool.cn/w3.css">
    <link rel="stylesheet" href="../js/element-ui/index.css">
    <title>上传课程</title>
    <style>
        .avatar-uploader .el-upload {
            border: 1px dashed #d9d9d9;
            border-radius: 6px;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .avatar-uploader .el-upload:hover {
            border-color: #409EFF;
        }

        .avatar-uploader-icon {
            font-size: 28px;
            color: #8c939d;
            width: 178px;
            height: 178px;
            line-height: 178px;
            text-align: center;
        }

        .avatar {
            width: 178px;
            height: 178px;
            display: block;
        }

        .datatable {
            position: relative;
            box-sizing: border-box;
            -webkit-box-flex: 1;
            width: 100%;
            max-width: 100%;
            font-size: 14px;
            color: rgb(96, 98, 102);
            overflow: hidden;
            flex: 1 1 0%;
        }

        .datatable td, .datatable th {
            padding: 12px 0;
            min-width: 0;
            -webkit-box-sizing: border-box;
            box-sizing: border-box;
            text-overflow: ellipsis;
            vertical-align: middle;
            position: relative;
            text-align: left;
        }

        .breadcrumb {
            font-size: 20px;
            margin: 10px;
        }
    </style>
</head>

<body class="hold-transition">
<div id="app">
    <div class="app-container">
        <div class="box">
            <div class="filter-container">
                <el-input placeholder="课程名称" v-model="pagination.queryString" style="width: 200px;" class="filter-item"
                          @keyup.enter.native="handleFilter"></el-input>
                <el-button @click="findPage()" class="dalfBut">查询</el-button>
                <el-button type="primary" class="butT" @click="handleCreate()">新建</el-button>
            </div>
            <el-table size="small" current-row-key="id" :data="dataList" stripe highlight-current-row>
                <el-table-column type="index" align="center" label="序号"></el-table-column>
                <el-table-column prop="name" label="课程名称" align="center"></el-table-column>
                <el-table-column prop="type" label="课程类型" align="center"></el-table-column>
                <el-table-column label="课程图片" align="center">
                    <template slot-scope="scope">
                        <img v-if="scope.row.img" v-bind:src=`https://oss-cn-zhangjiakou.aliyuncs.com/${scope.row.img}`
                             class="avatar">
                    </template>
                </el-table-column>
                <el-table-column label="操作" align="center">
                    <template slot-scope="scope">
                        <el-button type="primary" size="mini" @click="handleUpdate(scope.row)">编辑</el-button>
                        <el-button size="mini" type="danger" @click="handleDelete(scope.row)">删除</el-button>
                    </template>
                </el-table-column>
            </el-table>
            <div class="pagination-container">
                <el-pagination
                        class="pagiantion"
                        @current-change="findPage"
                        :current-page="pagination.currentPage"
                        :page-size="pagination.pageSize"
                        layout="total, prev, pager, next, jumper"
                        :total="pagination.total">
                </el-pagination>
            </div>

            <div class="add-form">
                <el-dialog title="上传课程" :visible.sync="dialogFormVisible">
                    <el-form ref="dataAddForm" :model="formData" :rules="rules" label-position="right"
                             label-width="100px">
                        <template>
                            <el-tabs v-model="activeName" type="card">
                                <el-tab-pane label="基本信息" name="first">
                                    <el-form label-position="right" label-width="100px">
                                        <el-row>
                                            <el-col :span="12">
                                                <el-form-item label="课程名称">
                                                    <el-input v-model="formData.name"/>
                                                </el-form-item>
                                            </el-col>
                                            <el-col :span="12">
                                                <el-form-item label="课程类型">
                                                    <el-input v-model="formData.type"/>
                                                </el-form-item>
                                            </el-col>
                                        </el-row>
                                        <el-row>
                                            <el-col :span="24">
                                                <el-form-item label="上传图片">
                                                    <!--
                                                        el-upload上传组件
                                                        action属性：图片上传提交的后台url
                                                        auto-upload属性：true代表自动上传
                                                        name属性：Controller中接收请求参数的名字
                                                        show-file-list属性：false代表不展示文件列表
                                                        on-success属性：上传成功时回调的钩子函数
                                                        before-upload属性：上传之前时回调的钩子函数
                                                    -->
                                                    <el-upload
                                                            class="avatar-uploader"
                                                            action="/publish/upload"
                                                            :auto-upload="autoUpload"
                                                            name="imgFile"
                                                            :show-file-list="false"
                                                            :on-success="handleAvatarSuccess"
                                                            :before-upload="beforeAvatarUpload">
                                                        <img v-if="imageUrl" :src="imageUrl" class="avatar">
                                                        <i v-else class="el-icon-plus avatar-uploader-icon"></i>
                                                    </el-upload>
                                                </el-form-item>
                                            </el-col>
                                        </el-row>
                                    </el-form>
                                </el-tab-pane>
                                <el-tab-pane label="视频信息" name="second">
                                    <div class="checkScrol">
                                        <table class="datatable">
                                            <thead>
                                            <tr>
                                                <th>选择</th>
                                                <th>视频名称</th>
                                                <th>视频描述</th>
                                                <th>视频时长</th>
                                            </tr>
                                            </thead>
                                            <tbody>
                                            <tr v-for="c in tableData">
                                                <td>
                                                    <input :id="c.id" v-model="videoIds" type="checkbox" :value="c.id">
                                                </td>
                                                <td><label :for="c.id">{{c.videoName}}</label></td>
                                                <td><label :for="c.id">{{c.videoDesc}}</label></td>
                                                <td><label :for="c.id">{{c.videoSecond}}</label></td>
                                            </tr>
                                            </tbody>
                                        </table>
                                    </div>
                                </el-tab-pane>
                            </el-tabs>
                        </template>
                    </el-form>
                    <div slot="footer" class="dialog-footer">
                        <el-button @click="dialogFormVisible = false">取消</el-button>
                        <el-button type="primary" @click="handleAdd()">确定</el-button>
                    </div>
                </el-dialog>
            </div>
            <div class="add-form">
                <el-dialog title="编辑课程" :visible.sync="dialogFormVisibleEdit">
                    <el-form ref="dataEditForm" :model="formData" :rules="rules" label-position="right"
                             label-width="100px">
                        <template>
                            <el-tabs v-model="activeName" type="card">
                                <el-tab-pane label="基本信息" name="first">
                                    <el-form label-position="right" label-width="100px">
                                        <el-row>
                                            <el-col :span="12">
                                                <el-form-item label="课程名称">
                                                    <el-input v-model="formData.name"/>
                                                </el-form-item>
                                            </el-col>
                                            <el-col :span="12">
                                                <el-form-item label="课程类型">
                                                    <el-input v-model="formData.type"/>
                                                </el-form-item>
                                            </el-col>
                                        </el-row>
                                        <el-row>
                                            <el-col :span="24">
                                                <el-form-item label="上传图片">
                                                    <!--
                                                        el-upload上传组件
                                                        action属性：图片上传提交的后台url
                                                        auto-upload属性：true代表自动上传
                                                        name属性：Controller中接收请求参数的名字
                                                        show-file-list属性：false代表不展示文件列表
                                                        on-success属性：上传成功时回调的钩子函数
                                                        before-upload属性：上传之前时回调的钩子函数
                                                    -->
                                                    <el-upload
                                                            class="avatar-uploader"
                                                            action="/publish/upload"
                                                            :auto-upload="autoUpload"
                                                            name="imgFile"
                                                            :show-file-list="false"
                                                            :on-success="handleAvatarSuccess"
                                                            :before-upload="beforeAvatarUpload">
                                                        <img v-if="imageUrl" :src="imageUrl" class="avatar">
                                                        <i v-else class="el-icon-plus avatar-uploader-icon"></i>
                                                    </el-upload>
                                                </el-form-item>
                                            </el-col>
                                        </el-row>
                                    </el-form>
                                </el-tab-pane>
                                <el-tab-pane label="视频信息" name="second">
                                    <div class="checkScrol">
                                        <table class="datatable">
                                            <thead>
                                            <tr>
                                                <th>选择</th>
                                                <th>视频名称</th>
                                                <th>视频描述</th>
                                                <th>视频时长</th>
                                            </tr>
                                            </thead>
                                            <tbody>
                                            <tr v-for="c in tableData">
                                                <td>
                                                    <input :id="c.id" v-model="videoIds" type="checkbox" :value="c.id">
                                                </td>
                                                <td><label :for="c.id">{{c.videoName}}</label></td>
                                                <td><label :for="c.id">{{c.videoDesc}}</label></td>
                                                <td><label :for="c.id">{{c.videoSecond}}</label></td>
                                            </tr>
                                            </tbody>
                                        </table>
                                    </div>
                                </el-tab-pane>
                            </el-tabs>
                        </template>
                    </el-form>
                    <div slot="footer" class="dialog-footer">
                        <el-button @click="dialogFormVisibleEdit = false">取消</el-button>
                        <el-button type="primary" @click="handleEdit()">确定</el-button>
                    </div>
                </el-dialog>
            </div>
        </div>
    </div>
</div>
</body>
<script src="../js/vue.js"></script>
<script src="../js/axios.min.js"></script>
<!-- 引入组件库 -->
<!--<script src="../js/jquery.3.2.1.js"></script>-->
<script src="../js/element-ui/index.js"></script>
<script>
    var vue = new Vue({
        el: '#app',
        data: {
            autoUpload: true,//自动上传
            imageUrl: null,//模型数据，用于上传图片完成后图片预览
            activeName:'first',//添加/编辑窗口Tab标签名称
            pagination: {//分页相关属性
                currentPage: 1,
                pageSize: 5,
                total: 10,
                queryString: null,
            },
            dataList: [],//列表数据
            formData: {
                rules: ''
            },//表单数据
            tableData: [],//添加表单窗口中检查组列表数据
            videoIds:[],//新增和编辑表单中对应的复选框，基于双向绑定可以进行回显和数据提交
            dialogFormVisible: false,//控制添加窗口显示/隐藏
            dialogFormVisibleEdit: false,//控制添加窗口显示/隐藏
            rules:{
                name:[{required:true,message: '课程名称为必填项',trigger:'blur'}],
                type:[{required:true,message: '课程类型为必填项',trigger:'blur'}],
            }
        },
        created() {
            this.findPage();
        },
        methods: {
            //分页查询
            findPage(page = 1) {
                //设置当前页码
                this.pagination.currentPage = page
                //封装携带请求参数
                let param = {
                    currentPage: this.pagination.currentPage,
                    pageSize: this.pagination.pageSize,
                    queryString: this.pagination.queryString
                }
                //发起axios请求
                axios.get('/publish/findPage', {params: param}).then(response => {
                    this.pagination.total = response.data.total
                    this.dataList = response.data.rows
                })
            },
            //文件上传成功后的钩子，response为服务端返回的值，file为当前上传的文件封装成的js对象
            handleAvatarSuccess(response, file) {
                //response的数据  flag: true, message: "图片上传成功", data: "5efca038-a934-46ae-99f5-2c57a906f4d9.jpg"
                console.log(response, file)
                this.$message({
                    type: response.flag ? 'success' : 'error',
                    message: response.message
                });
                //页面回显上传成功的图片
                this.imageUrl = "https://oss-cn-zhangjiakou.aliyuncs.com/" + response.data
                //提交表单，表单中也需要包含图片信息
                this.formData.img = response.data
            },
            //上传图片之前执行
            beforeAvatarUpload(file) {
                const isJPG = file.type === 'image/jpeg';
                const isLt2M = file.size / 1024 / 1024 < 2;
                if (!isJPG) {
                    this.$message.error('上传课程图片只能是 JPG 格式!');
                }
                if (!isLt2M) {
                    this.$message.error('上传课程图片大小不能超过 2MB!');
                }
                return isJPG && isLt2M;
            },
            // 重置表单
            resetForm() {
                //默认打开显示第一个选项框
                this.activeName = 'first'
                //打开的增加表单中没有数据
                this.formData = {}
                //清空视频数据
                this.videoIds = []
                //清空上传的图片地址信息
                this.imageUrl = ""
            },
            // 弹出添加窗口
            handleCreate() {
                this.resetForm()
                //显示增加表单对话框
                this.dialogFormVisible = true
                //发起axios请求，查询所有的课程，并且显示 tableData
                axios.get('/publish/findAll').then(response => {
                    if (response.data.flag) {
                        this.tableData = response.data.data
                    } else {
                        this.$message.error(response.data.message)
                    }
                })
            },
            //添加
            handleAdd() {
                //发起axios的post请求
                axios.post('/publish/add?videoIds='+this.videoIds,this.formData).then(response=>{
                    //关闭新增窗口
                    this.dialogFormVisible = false;
                    if (response.data.flag){
                        this.$message.success(response.data.message);
                    }else {
                        this.$message.error(response.data.message);
                    }
                    this.findPage()
                })
            },
            //弹出编辑窗口
            handleUpdate(row) {
                axios.get(`/publish/${row.id}`).then(response => {
                    if (response.data.flag) {
                        this.dialogFormVisibleEdit = true
                        this.formData = response.data.data
                        this.activeName='first'
                        //发起axios请求查询所有视频信息
                        axios.get('/publishVideo/findAll').then(response=>{
                            if (response.data.flag){
                                this.tableData = response.data.data

                                //发起请求,根据课程ID查询包含的视频信息
                                axios.get(`/publish/findVideoIdsByCourseId/${row.id}`).then(response=>{
                                    if (response.data.flag){
                                        this.videoIds = this.data.data
                                    }else {
                                        this.$message.error(response.data.message);
                                    }
                                })
                            }else {
                                this.$message.error(response.data.message);
                            }
                        })
                    } else {
                        this.$message.error(response.data.message);
                    }
                })
            },
            //编辑
            handleEdit() {
                if (this.videoIds==0){
                    this.$message.error('该课程未勾选视频');
                    return;
                }
                //校验添加表单
                this.$refs["dataEditForm"].validate((valid) => {
                    if (valid) {
                        this.dialogFormVisibleEdit = false
                        axios.put('/publish/update?videoIds='+this.videoIds, this.formData).then(response => {
                            if (response.data.flag) {
                                this.dialogFormVisibleEdit = false
                                this.$message.success(response.data.message);
                            } else {
                                this.$message.error(response.data.message);
                            }
                            //分页查询检查项
                            this.findPage()
                        })
                    } else {
                        this.$message.error('表单校验失败');
                        return false;
                    }
                });
            },
            //删除
            handleDelete(row) {
                this.$confirm('是否删除此课程?', '提示', {type: 'warning'}).then(() => {
                    axios.delete(`/publish/${row.id}`).then(response => {
                        if (response.data.flag) {
                            this.$message.success(response.data.message);
                            this.findPage()
                        } else {
                            this.$message.error(response.data.message);
                        }
                    })
                })
            }
        }
    })
</script>
</body>

</html>